Trust the TLS:
“A bibliomane friend from North of the border has sent us The Singer Passes, a collection of poems published in Glasgow in 1934. The author is Harry Potter. Greater Rowlingologists than we have no doubt pondered the question of how the bespectacled boy got his name, but none, so far as we know, has considered the likelihood that the original is an early twentieth-century poet from Scotland, the country in which J. K. Rowling now makes her home.
nilanjana s roy 